1SDA054445R1 ABB T5H 400 TMA 400-4000 3p F F Molded Case Circuit Breakers

1SDA054445R1 ABB T5H 400 TMA 400-4000 3p F F Molded Case Circuit Breakers

The ABB 1SDA054445R1 is a high-performance molded case circuit breaker (MCCB) from ABB’s premium Tmax T5H series, engineered for demanding industrial and commercial power distribution applications. Rated at a 400 A frame size with an adjustable thermal-magnetic trip unit (TMA), this 3-pole breaker provides precise and reliable overload and short-circuit protection for circuits with load currents from 400 A to 4,000 A magnetic trip setting, making it ideal for protecting large motors, transformers, and main distribution feeders.

Designed for systems operating up to 690 V AC, the T5H 400 TMA model delivers exceptional breaking capacity—65 kA at 415 V AC—ensuring safety even in high-fault-current environments such as factories, data centers, mining operations, and utility substations. Its robust construction, clear status indication, and compatibility with ABB’s full range of Tmax accessories make it a versatile choice for modern switchgear and motor control centers (MCCs).

Certified to global standards including IEC/EN 60947-2, UL 489, CSA, and CCC, and compliant with RoHS and REACH, the 1SDA054445R1 ensures worldwide acceptance and long-term reliability.

Product Overview: ABB 1SDA054445R1

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